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If through a vulnerability assessment, a network security issue is detected for the vulnerability below, applying the appropriate security patches in a timely matter is very important. If you have detected that your system has already been compromised, following CERT's Network Security recovery document will assist with recommended steps for system recovery.
Vulnerability Assessment Details
Check for the version of the php4/mod_php4 package
Detailed Explanation for this Vulnerability Assessment
The remote host is missing the patch for the advisory SUSE-SA:2004:021 (php4/mod_php4).
PHP is a well documented, widely-used scripting language often used within
web server setups.
Stefan Esser found a problem with the 'memory_limit' handling of PHP which
permits remote attackers to execute arbitrary code as the user running
the PHP interpreter. This problem has been fixed. Additionally a
problem within the 'strip_tags' function has been found and fixed which
permited remote attackers to inject arbitrary tags into certain web
browsers, issuing XSS related attacks.
Since there is no easy workaround except disabling PHP, we recommend
an update for users running the PHP interpreter within the apache
To be sure the update takes effect you have to restart the apache process
by executing the following command as root:
or if you use the apache2 package
Please download the update package for your distribution and verify its
integrity by the methods listed in section 3) of this announcement.
Then, install the package using the command 'rpm -Fhv file.rpm' to apply
Solution : http://www.suse.de/security/2004_21_php4.html
Network Security Threat Level: High
Networks Security ID:
Vulnerability Assessment Copyright: This script is Copyright (C) 2004 Tenable Network Security
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